`ifndef REGISTER_FILE_H
`define REGISTER_FILE_H

module register_file #(parameter width=5, parameter nregs=5)(
    input logic [0:0] clk, input logic[0:0] we,
    input logic [nregs-1:0] WA, input logic [2**width-1:0] WD,
    input logic [nregs-1:0] RA1, output logic [2**width-1:0] RD1,
    input logic [nregs-1:0] RA2, output logic [2**width-1:0] RD2,
    input logic [nregs-1:0] RA3, output logic [2**width-1:0] RD3
);
    localparam BW = 2**width;
    logic [2**width-1:0] regs[2**nregs];

    initial begin
        regs[0] = {(2**width){1'b0}};
    end

    always_ff @(posedge clk) begin
        if (we & (WA != {(2**width){1'b0}} )) begin
            regs[WA] <= WD;
        end
    end

    assign RD1 = regs[RA1];
    assign RD2 = regs[RA2];
    assign RD3 = regs[RA3];
endmodule
`endif